U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

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Status:
US Approved OTC
Source:
21 CFR 333.210(f) antifungal undecylenic acid
Source URL:
First approved in 1945
Source:
Desenex Sol. by Pennwalt
Source URL:

Class (Stereo):
CHEMICAL (ACHIRAL)



Undecylenic acid is unsaturated fatty acid, which naturally occurs in sweat, and is commercially produced by the vacuum distillation of castor bean oil. It is recognized as GRASE by FDA, and is marketed over the counter to treat skin infections and to relieve itching. Undecylenic acid acts by inhibition of morphogenesis from yeast to hyphae forms.